<?php
/**
 * KindEditor PHP
 * 
 * 本PHP程序是演示程序，建议不要直接在实际项目中使用。
 * 如果您确定直接使用本程序，使用之前请仔细确认相关安全设置。
 * 
 */

require_once 'JSON.php';

$php_path = dirname(__FILE__) . '/';
$php_url = dirname($_SERVER['PHP_SELF']) . '/';

//文件保存目录路径
$save_path = $php_path . '../../../data/upload_ck/';
//文件保存目录URL
$save_url = $php_url . '../../../data/upload_ck/';
//定义允许上传的文件扩展名
$ext_arr = array('gif', 'jpg', 'jpeg', 'png', 'bmp');
//最大文件大小
$max_size = 1024*1024*5;//3M

$save_path = realpath($save_path) . '/';

//有上传文件时
if (empty($_FILES) === false) {
	//原文件名
	$file_name = $_FILES['imgFile']['name'];
	//服务器上临时文件名
	$tmp_name = $_FILES['imgFile']['tmp_name'];
	//文件大小
	$file_size = $_FILES['imgFile']['size'];
	//检查文件名
	if (!$file_name) {
		alert("请选择文件。");
	}
	//检查目录
	if (@is_dir($save_path) === false) {
		alert("上传目录不存在。");
	}
	//检查目录写权限
	if (@is_writable($save_path) === false) {
		alert("上传目录没有写权限。");
	}
	//检查是否已上传
	if (@is_uploaded_file($tmp_name) === false) {
		alert("临时文件可能不是上传文件。");
	}
	//检查文件大小
	if ($file_size > $max_size) {
		alert("上传文件大小超过限制。");
	}
	//获得文件扩展名
	$temp_arr = explode(".", $file_name);
	$file_ext = array_pop($temp_arr);
	$file_ext = trim($file_ext);
	$file_ext = strtolower($file_ext);
	//检查扩展名
	if (in_array($file_ext, $ext_arr) === false) {
		alert("上传文件扩展名是不允许的扩展名。");
	}
	//创建文件夹
	$ymd = date("Ymd");
	$save_path .= $ymd . "/";
	$save_url .= $ymd . "/";
	if (!file_exists($save_path)) {
		mkdir($save_path);
	}
	//新文件名
	$new_file_name = date("YmdHis") . '_' . rand(10000, 99999) . '.' . $file_ext;
	//移动文件
	$file_path = $save_path . $new_file_name;
	if (move_uploaded_file($tmp_name, $file_path) === false) {
		alert("上传文件失败。");
	}
	@chmod($file_path, 0644);
	$file_url = $save_url . $new_file_name;
	
	//处理编辑器图片缩放
	$imagecrop = new CI_Imagecrop();
	$params =array('src_file' => $file_path, 'dst_file' => $file_path);
	$imagecrop->src_file=$params['src_file'];
	$imagecrop->dst_file=$params['dst_file'];
	$imagecrop->LoadImage();
	$imagecrop->Crop(560,420,4);
	$imagecrop->SaveImage();
	$imagecrop->destory();
	
	header('Content-type: text/html; charset=UTF-8');
	$json = new Services_JSON();
	echo $json->encode(array('error' => 0, 'url' => $file_url));
	exit;
}

function alert($msg) {
	header('Content-type: text/html; charset=UTF-8');
	$json = new Services_JSON();
	echo $json->encode(array('error' => 1, 'message' => $msg));
	exit;
}

class CI_Imagecrop{

var $sImage;
var $dImage;
var $src_file;
var $dst_file;
var $src_width;
var $src_height;
var $src_ext;
var $src_type;

/*function CI_Imagecrop($params){
$this->sImage = $this->dImage = $this->src_file = $this->dst_file = $this->src_width = $this->src_height = $this->src_ext = $this->src_type = "";
$this->src_file=$params['src_file'];
$this->dst_file=$params['dst_file'];
$this->LoadImage();
}*/

function SetSrcFile($src_file){
$this->src_file=$src_file;
}

function SetDstFile($dst_file){
$this->dst_file=$dst_file;
}

function LoadImage(){
list($this->src_width, $this->src_height, $this->src_type) = getimagesize($this->src_file);
switch($this->src_type) {
case IMAGETYPE_JPEG :
$this->sImage=imagecreatefromjpeg($this->src_file);
$this->ext='jpg';
break;
case IMAGETYPE_PNG :
$this->sImage=imagecreatefrompng($this->src_file);
$this->ext='png';
break;
case IMAGETYPE_GIF :
$this->sImage=imagecreatefromgif($this->src_file);
$this->ext='gif';
break;
default:
exit();
}
}

function SaveImage($fileName=''){
$this->dst_file=$fileName ? $fileName : $this->dst_file;
switch($this->src_type) {
case IMAGETYPE_JPEG :
imagejpeg($this->dImage,$this->dst_file,100);
break;
case IMAGETYPE_PNG :
imagepng($this->dImage,$this->dst_file);
break;
case IMAGETYPE_GIF :
imagegif($this->dImage,$this->dst_file);
break;
default:
break;
}
}

function OutImage(){
switch($this->src_type) {
case IMAGETYPE_JPEG :
header('Content-type: image/jpeg');
imagejpeg($this->dImage);
break;
case IMAGETYPE_PNG :
header('Content-type: image/png');
imagepng($this->dImage);
break;
case IMAGETYPE_GIF :
header('Content-type: image/gif');
imagegif($this->dImage);
break;
default:
break;
}
}

function SaveAlpha($fileName=''){
$this->dst_file=$fileName ? $fileName . '.png' : $this->dst_file .'.png';
imagesavealpha($this->dImage, true);
imagepng($this->dImage,$this->dst_file);
}

function OutAlpha(){
imagesavealpha($this->dImage, true);
header('Content-type: image/png');
imagepng($this->dImage);
}   

function destory(){
imagedestroy($this->sImage);
imagedestroy($this->dImage);
}

function Crop($dst_width,$dst_height,$mode=1,$dst_file=''){
if($dst_file) $this->dst_file=$dst_file;
$this->dImage = imagecreatetruecolor($dst_width,$dst_height);

$bg = imagecolorallocatealpha($this->dImage,255,255,255,127);
imagefill($this->dImage, 0, 0, $bg);
imagecolortransparent($this->dImage,$bg);

$ratio_w=1.0 * $dst_width / $this->src_width;
$ratio_h=1.0 * $dst_height / $this->src_height;
$ratio=1.0;
switch($mode){
case 1:        // always crop
if( ($ratio_w < 1 && $ratio_h < 1) || ($ratio_w > 1 && $ratio_h > 1)){
$ratio = $ratio_w < $ratio_h ? $ratio_h : $ratio_w;
$tmp_w = (int)($dst_width / $ratio);
$tmp_h = (int)($dst_height / $ratio);
$tmp_img=imagecreatetruecolor($tmp_w , $tmp_h);
$src_x = (int) (($this->src_width-$tmp_w)/2) ;
$src_y = (int) (($this->src_height-$tmp_h)/2) ;  

imagecopy($tmp_img, $this->sImage, 0,0,$src_x,$src_y,$tmp_w,$tmp_h);   
imagecopyresampled($this->dImage,$tmp_img,0,0,0,0,$dst_width,$dst_height,$tmp_w,$tmp_h);
imagedestroy($tmp_img);
}else{
$ratio = $ratio_w < $ratio_h ? $ratio_h : $ratio_w;
$tmp_w = (int)($this->src_width * $ratio);
$tmp_h = (int)($this->src_height * $ratio);
$tmp_img=imagecreatetruecolor($tmp_w ,$tmp_h);
imagecopyresampled($tmp_img,$this->sImage,0,0,0,0,$tmp_w,$tmp_h,$this->src_width,$this->src_height);
$src_x = (int)($tmp_w - $dst_width) / 2 ;
$src_y = (int)($tmp_h - $dst_height) / 2 ;   
imagecopy($this->dImage, $tmp_img, 0,0,$src_x,$src_y,$dst_width,$dst_height);
imagedestroy($tmp_img);
}
break;
case 2:        // only small
if($ratio_w < 1 && $ratio_h < 1){
$ratio = $ratio_w < $ratio_h ? $ratio_h : $ratio_w;
$tmp_w = (int)($dst_width / $ratio);
$tmp_h = (int)($dst_height / $ratio);
$tmp_img=imagecreatetruecolor($tmp_w , $tmp_h);
$src_x = (int) ($this->src_width-$tmp_w)/2 ;
$src_y = (int) ($this->src_height-$tmp_h)/2 ;   
imagecopy($tmp_img, $this->sImage, 0,0,$src_x,$src_y,$tmp_w,$tmp_h);   
imagecopyresampled($this->dImage,$tmp_img,0,0,0,0,$dst_width,$dst_height,$tmp_w,$tmp_h);
imagedestroy($tmp_img);
}elseif($ratio_w > 1 && $ratio_h > 1){
$dst_x = (int) abs($dst_width - $this->src_width) / 2 ;
$dst_y = (int) abs($dst_height -$this->src_height) / 2;   
imagecopy($this->dImage, $this->sImage,$dst_x,$dst_y,0,0,$this->src_width,$this->src_height);
}else{
$src_x=0;$dst_x=0;$src_y=0;$dst_y=0;
if(($dst_width - $this->src_width) < 0){
$src_x = (int) ($this->src_width - $dst_width)/2;
$dst_x =0;
}else{
$src_x =0;
$dst_x = (int) ($dst_width - $this->src_width)/2;
}

if( ($dst_height -$this->src_height) < 0){
$src_y = (int) ($this->src_height - $dst_height)/2;
$dst_y = 0;
}else{
$src_y = 0;
$dst_y = (int) ($dst_height - $this->src_height)/2;
}
imagecopy($this->dImage, $this->sImage,$dst_x,$dst_y,$src_x,$src_y,$this->src_width,$this->src_height);
}
break;
case 3:        // keep all image size and create need size
if($ratio_w > 1 && $ratio_h > 1){
$dst_x = (int)(abs($dst_width - $this->src_width )/2) ;
$dst_y = (int)(abs($dst_height- $this->src_height)/2) ;
imagecopy($this->dImage, $this->sImage, $dst_x,$dst_y,0,0,$this->src_width,$this->src_height);
}else{
$ratio = $ratio_w > $ratio_h ? $ratio_h : $ratio_w;
$tmp_w = (int)($this->src_width * $ratio);
$tmp_h = (int)($this->src_height * $ratio);
$tmp_img=imagecreatetruecolor($tmp_w ,$tmp_h);
imagecopyresampled($tmp_img,$this->sImage,0,0,0,0,$tmp_w,$tmp_h,$this->src_width,$this->src_height);
$dst_x = (int)(abs($tmp_w -$dst_width )/2) ;
$dst_y = (int)(abs($tmp_h -$dst_height)/2) ;
imagecopy($this->dImage, $tmp_img, $dst_x,$dst_y,0,0,$tmp_w,$tmp_h);
imagedestroy($tmp_img);
}
break;
case 4:        // keep all image but create actually size
if($ratio_w > 1 && $ratio_h > 1){
$this->dImage = imagecreatetruecolor($this->src_width,$this->src_height);
imagecopy($this->dImage, $this->sImage,0,0,0,0,$this->src_width,$this->src_height);
}else{
$ratio = $ratio_w > $ratio_h ? $ratio_h : $ratio_w;
$tmp_w = (int)($this->src_width * $ratio);
$tmp_h = (int)($this->src_height * $ratio);
$this->dImage = imagecreatetruecolor($tmp_w ,$tmp_h);
imagecopyresampled($this->dImage,$this->sImage,0,0,0,0,$tmp_w,$tmp_h,$this->src_width,$this->src_height);
}
break;
}
}// end Crop


}

?>